CN113799036A - Spanner device suitable for narrow and small space - Google Patents

Abstract

The invention provides a wrench device suitable for narrow spaces, which inputs power through a power input shaft, and transmits the power of the power input shaft to a power output shaft by using a transmission part so as to drive a fastener to rotate when the power output shaft is contacted with the fastener, thereby realizing the screwing or unscrewing of the fastener. The power input shaft and the power output shaft are perpendicular in rotation direction, namely the power direction is changed by the aid of the transmission part, when the power output shaft contacts the fastener, the power input shaft only needs to rotate around the extending axial direction of the power input shaft to drive the power output shaft to rotate, so that the power output shaft is placed in a narrow space to operate the fastener, fastening operation of the fastener in the narrow space is achieved, and meanwhile safety accidents caused by overlarge operation action during operation in narrow power equipment are avoided.

Description

Spanner device suitable for narrow and small space

Technical Field

The invention relates to the technical field of power equipment assembly, in particular to a wrench device suitable for a narrow space.

Background

In the process of assembling, manufacturing and maintaining the electric power equipment, along with the development of the new national electric power technology, the new technology of the electric power equipment product is gradually enhanced, and green products are invisibly made. The corresponding product structure mostly uses a plurality of structures with complex, multipurpose, miniaturization and compact structure, and the technology has high starting point. In the assembling, manufacturing and overhauling processes, the wrench is widely applied in the assembling, manufacturing and overhauling processes due to the unique tool performance and higher cost performance. However, a common wrench in some structures with special requirements (such as a switch cabinet, a power distribution cabinet, an outgoing line cabinet, a transformer) and other electrical equipment is not free from force, and when some electrical equipment is assembled, manufactured and overhauled, performance parameters such as fastening, force limitation and the like cannot be realized due to the complex structure and the narrow space of the electrical equipment. For example, when a certain switch cabinet is maintained, the gap of the structure in the cabinet is narrow, a general tool cannot enter the electrified equipment to be in contact with the nut, and the tool is easy to touch the adjacent electrified part to cause electric shock accidents because the traditional tool is extremely easy to cause in the electrified equipment with a complex structure and a narrow space.

Disclosure of Invention

In view of this, embodiments of the present invention are directed to provide a wrench device suitable for a narrow space, so as to solve the problem that a worker cannot mount a fastener in the narrow space.

According to an aspect of the present invention, an embodiment of the present invention provides a wrench device suitable for a narrow space, including: a power input shaft for providing power to drive a fastener; a power take-off shaft for coming into close contact with the fastener to drive the fastener; the transmission component is arranged between the power input shaft and the power output shaft and is used for transmitting the power of the power input shaft to the power output shaft; wherein the power input shaft is perpendicular to the rotation direction of the power output shaft.

The application provides a wrench device suitable for narrow and small space through power input shaft input power to utilize transmission part with power input shaft's power transmission to power output shaft, drive the fastener rotation when realizing power output shaft and fastener contact, thereby realize screwing up or unscrewing of fastener. The power input shaft and the power output shaft are perpendicular in rotation direction, namely the power direction is changed by the aid of the transmission part, when the power output shaft contacts the fastener, the power input shaft only needs to rotate around the extending axial direction of the power input shaft to drive the power output shaft to rotate, so that the power output shaft is placed in a narrow space to operate the fastener, fastening operation of the fastener in the narrow space is achieved, and meanwhile safety accidents caused by overlarge operation action during operation in narrow power equipment are avoided.

In one embodiment, the transmission member includes a worm wheel and a worm that mesh with each other; the worm is arranged on the outer surface of the power input shaft, and the worm wheel is arranged on the outer surface of the power output shaft.

The transmission part comprises a worm wheel and a worm which are meshed with each other, wherein the worm is positioned on the outer surface of the power input shaft, the worm wheel is positioned on the outer surface of the power output shaft, namely, the matching of the worm wheel and the worm which are meshed with each other is utilized to transmit the power of the power input shaft to the power output shaft, and the structural characteristics of the worm wheel and the worm are utilized to convert the power direction (the rotation direction of the worm) of the power input shaft into the output direction (the rotation direction of the worm wheel) of the power output shaft, so that the power output shaft only does in-situ rotation action to tighten the fastener, and the fastener is prevented from touching other electrified devices.

In one embodiment, the end of the power input shaft remote from the power output shaft comprises a square column structure.

Keep away from power output shaft one end through setting up the power input shaft and be the square column structure, utilize the square column structure to make things convenient for operating personnel gripping in order to rotate the power input shaft, also can make things convenient for other structures simultaneously to be connected with this square column structure transmission to further reduce the rotation difficulty of power input shaft and improve the operating efficiency of this wrench device.

In one embodiment, the wrench device for narrow spaces further includes: and the driving part is connected with the square column structure through a sleeve.

The wrench device suitable for narrow and small space of this application can also set up a driver part, and this driver part and square column structural connection rotate required drive power in order to provide drive power input shaft, and is specific, and driver part and square column structure can be through muffjoint, can realize being connected of different driver parts and this square column structure through setting up not unidimensional sleeve to can improve this wrench device's range of application and scene.

In one embodiment, the driving member includes a handle including a connecting portion connected to the square pillar structure through the sleeve and a rotating portion penetrating the connecting portion in a vertical direction perpendicular to the power input shaft.

The driving part in this application can be the handle, and this handle and square column structural connection, operating personnel through this handle output drive power with the rotation power input shaft to realize this spanner device and screw up or the operation of unscrewing the fastener. Specifically, this handle can include connecting portion and rotation portion, and wherein, connecting portion and square column structural connection, for example can be through muffjoint, rotation portion runs through connecting portion along the vertical direction of perpendicular to power input shaft, and rotation portion constitutes a cross or T word structure with connecting portion promptly, and operating personnel realizes the rotation of power input shaft then through rotating this rotation portion in order to drive this connecting portion action.

In one embodiment, the driving part comprises a motor, and an output shaft of the motor is connected with the square column structure through a sleeve.

The driving part in this application can also be mechanized actuating mechanism such as motor, and the output shaft and the square column structure of motor can be connected through structure transmission such as sleeve to realize that the motor drives the rotation of power input shaft, realize then screwing up or the operation of unscrewing of fastener.

In one embodiment, the wrench device for narrow spaces further includes: the power input shaft and the power output shaft respectively rotate relative to the shell.

The utility model provides a wrench device suitable for narrow and small space can also include a shell, at least part and the drive disk assembly of power input shaft set up in this shell, the power input shaft, power output shaft rotates relative to the shell respectively, thereby realize that power is transmitted to power output shaft by the power input shaft, wherein, the shell is used for protecting power input shaft and power output shaft, avoid power input shaft and power output shaft to expose for a long time and rust or debris get into and lead to power input shaft and power output shaft can not normally work outside.

In one embodiment, the housing is hermetically connected with the power input shaft and the power output shaft, and the housing is filled with lubricating oil.

The utility model provides a shell and power input shaft, power output shaft sealing connection to the shell intussuseption is filled with lubricating oil, realizes power input shaft and power output shaft at the lubricating oil internal rotation promptly, thereby has reduced power input shaft and power output shaft pivoted resistance, has improved driven efficiency.

In one embodiment, the wrench device for narrow spaces further includes: the illuminating lamp is arranged on one side, close to the power output shaft, of the outer side of the shell.

The application of the spanner device suitable for narrow and small space can also include the light, and this light sets up in the shell outside and is close to power output shaft one side, because the light is not enough in the narrow and small space usually, the difficult accurate fastener that needs to be screwed up or unscrew of finding of operating personnel, can improve the luminance in this narrow and small space through setting up the light this moment to improve the efficiency that operating personnel found the fastener, improved the operating efficiency then.

In one embodiment, the power take-off shaft includes a square stub disposed in the center of the power take-off shaft.

This application sets up a four directions flange through the center at power output shaft to can utilize structures such as the sleeve of equidimension not to realize power output shaft and the cooperation of the fastener of equidimension not (for example the nut of equidimension not etc.), with the operation of the fastener of realizing not unidimension, thereby improved this spanner device's application scope.

Drawings

Fig. 1 is a schematic structural diagram of a wrench device suitable for use in a narrow space according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a wrench device suitable for use in a narrow space according to another embodiment of the present application.

Fig. 3 is a schematic structural view of a wrench device suitable for use in a narrow space according to another embodiment of the present application.

Fig. 4 is a schematic structural diagram of a wrench device suitable for use in a narrow space according to another embodiment of the present application.

Fig. 5 is a schematic structural view of a wrench device suitable for use in a narrow space according to another embodiment of the present application.

Fig. 6 is a schematic structural view of a wrench device suitable for use in a narrow space according to another embodiment of the present application.

Fig. 7 is a schematic structural view of a wrench device suitable for use in a narrow space according to another embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Further, in the exemplary embodiments, since the same reference numerals denote the same components having the same structure or the same steps of the same method, if an embodiment is exemplarily described, only a structure or a method different from the already described embodiment is described in other exemplary embodiments.

Throughout the specification and claims, when one element is described as being "connected" to another element, the one element may be "directly connected" to the other element or "electrically connected" to the other element through a third element. Furthermore, unless explicitly described to the contrary, the term "comprising" and its corresponding terms should only be taken as including the stated features, but should not be taken as excluding any other features.

Fig. 1 is a schematic structural diagram of a wrench device suitable for use in a narrow space according to an embodiment of the present disclosure. As shown in fig. 1, the wrench device includes: a power input shaft 1, a power output shaft 2 and a transmission component 3; the power input shaft 1 is used for providing power for screwing a fastener, the transmission component 3 is arranged between the power input shaft 1 and the power output shaft 2 and is used for transmitting the power of the power input shaft 1 to the power output shaft 2, and the power output shaft 2 is used for being tightly contacted with the fastener to screw the fastener; the power input shaft 1 is perpendicular to the rotation direction of the power output shaft 2.

During routine maintenance and installation, such as electrical equipment maintenance and installation, it is often necessary to use a wrench or other tool to perform tightening or loosening operations on a fastener (e.g., a bolt, a screw, etc.). To ensure that the fastener is sufficiently tightened, however, a relatively large torque is required to drive the fastener, and it is common practice to increase the moment arm of the wrench at the end remote from the fastener to increase the input torque. However, the wrench is realized by using the fastener as the center and the moment arm as the radius to perform circumferential rotation in the process of screwing the fastener, and the longer moment arm can cause the rotation radius to be too large, that is, a larger movable space is needed to ensure the normal rotation of the wrench. However, in the process of time operation, the electric power equipment is as small and light as possible, and the space is saved as much as possible, so that the operation space in the electric power equipment is narrow, and the operation space requirement of the wrench is difficult to meet. Meanwhile, because the power equipment usually has an electrified device or an electric leakage position, the wrench is touched when the wrench is operated too much, so that the risk of electric shock of an operator is caused.

In order to solve the above problems, the present application proposes a wrench device for a narrow space, which utilizes a power input shaft 1, a power output shaft 2 and a transmission member 3 to output power of an operator or other driving mechanism to a fastener via the power input shaft 1, the transmission member 3, the power output shaft 2, thereby realizing the tightening or loosening operation of the fastener, and setting the rotating directions of the power input shaft 1 and the power output shaft 2 to be vertical, i.e. the rotation direction of the power input shaft 1 is converted into the rotation direction of the power output shaft 2 by means of the transmission member 3, thereby realizing that the power input shaft 1 rotates around the axis of the power input shaft 1 to drive the power output shaft 2 to rotate to realize the screwing or unscrewing operation of the fastener, avoiding the power input shaft 1 from doing large-scale motion, thereby reducing the requirement of the wrench device on space in the operation process and realizing the operation of screwing or unscrewing the fastener in a narrow space.

The application provides a wrench device suitable for narrow and small space through power input shaft input power to utilize transmission part with power input shaft's power transmission to power output shaft, drive the fastener rotation when realizing power output shaft and fastener contact, thereby realize screwing up or unscrewing of fastener. The power input shaft and the power output shaft are perpendicular in rotation direction, namely the power direction is changed by the aid of the transmission part, when the power output shaft contacts the fastener, the power input shaft only needs to rotate around the extending axial direction of the power input shaft to drive the power output shaft to rotate, so that the power output shaft is placed in a narrow space to operate the fastener, fastening operation of the fastener in the narrow space is achieved, and meanwhile safety accidents caused by overlarge operation action during operation in narrow power equipment are avoided.

Fig. 2 is a schematic structural diagram of a wrench device suitable for use in a narrow space according to another embodiment of the present application. As shown in fig. 2, the transmission member 3 may include a worm wheel 31 and a worm 32 engaged with each other; wherein, the worm 32 is arranged on the outer surface of the power input shaft 1, and the worm wheel 31 is arranged on the outer surface of the power output shaft 2.

Since the transmission member 3 is used for realizing the power transmission between the power input shaft 1 and the power output shaft 2, the rotating direction of the power input from the power input shaft 1 is changed into the rotating direction of the power output from the power output shaft 2. In order to change the direction of the variable force, the transmission part 3 is configured to include the worm wheel 31 and the worm 32 which are meshed with each other, wherein the worm 32 is located on the outer surface of the power input shaft 1, and the worm wheel 31 is located on the outer surface of the power output shaft 2, that is, by using the cooperation of the worm wheel 31 and the worm 32 which are meshed with each other, the power of the worm 32 in the circumferential rotation direction of the axis is converted into the power of the circumferential rotation of the worm wheel 31, so as to convert the power direction (the rotation direction of the worm 32) of the power input shaft 1 into the output direction (the rotation direction of the worm wheel 31) of the power output shaft 2, thereby realizing that the power output shaft 1 only performs the in-situ rotation action to tighten the fastener and avoiding the fastener from touching other charged devices.

It should be understood that, in the embodiment of the present application, different transmission component structures, such as a gear set structure, may be selected according to requirements of practical application scenarios, as long as the selected specific structure of the transmission component is capable of transmitting power and changing a power direction, and the specific structure of the transmission component is not limited in the embodiment of the present application.

In one embodiment, the end of the power input shaft 1 remote from the power output shaft 2 may comprise a square column structure.

Since the wrench device is usually rotated manually, in order to save the driving force of the operator, other driving mechanisms or other driving force saving structures may be adopted, so that the driving mechanism and the like are required to be simply connected and disconnected with the power input shaft 1 in a transmission manner. This application is through setting up power input shaft 1 and keeping away from 2 one ends of power output shaft and be the square column structure, utilizes the square column structure to make things convenient for operating personnel gripping in order to rotate power input shaft 1, also can make things convenient for other structures (like actuating mechanism) to be connected with this square column structure transmission simultaneously to further reduce power input shaft 1's the rotation difficulty degree and improve this wrench device's operating efficiency.

It should be understood that different end structures of the power input shaft may be selected according to requirements of practical application scenarios in the embodiments of the present application, as long as the selected end structure of the power input shaft can facilitate power input or connection with other driving mechanisms, and the specific structure of the end portion of the power input shaft is not limited in the embodiments of the present application.

Fig. 3 is a schematic structural view of a wrench device suitable for use in a narrow space according to another embodiment of the present application. As shown in fig. 3, the wrench device for a narrow space may further include: the driving part 4, drive part 4 and the square column structure are connected through the sleeve.

The wrench device suitable for narrow and small space of this application can also set up a driver part 4, and this driver part 4 and square column structural connection can pass through muffjoint in order to provide the required drive power of 1 rotations of drive power input shaft, specifically, driver part 4 and square column structure, can realize being connected of different driver parts 4 and this square column structure through setting up not unidimensional sleeve to can improve this wrench device's range of application and scene.

Fig. 4 is a schematic structural diagram of a wrench device suitable for use in a narrow space according to another embodiment of the present application. As shown in fig. 4, the driving member 4 may be a handle 41, the handle 41 includes a connecting portion 411 and a rotating portion 412, the connecting portion 411 is connected to the square pillar structure by a bushing, and the rotating portion 412 penetrates the connecting portion 411 in a vertical direction perpendicular to the power input shaft 1.

The driving part 4 in this application may be a handle 41, the handle 41 is connected to a square column structure, and an operator outputs a driving force through the handle 41 to rotate the power input shaft 1, thereby performing a work of screwing or unscrewing a fastener by the wrench apparatus. Specifically, the handle 41 may include a connecting portion 411 and a rotating portion 412, where the connecting portion 411 is connected to a square column structure, for example, the connecting portion may be connected through a sleeve, the rotating portion 412 penetrates through the connecting portion 411 along a vertical direction perpendicular to the power input shaft 1, that is, the rotating portion 412 and the connecting portion 411 form a cross or T-shaped structure, and an operator rotates the rotating portion 412 to drive the connecting portion 411 to move, so as to rotate the power input shaft 1. Specifically, in order to meet the technical requirements of assembly in narrow space in power equipment, a handle 41 with the length of 200mm is designed, a slidable square hole sleeve head is installed in a handle rod and is sleeved with a power input shaft 1 with the length of 300mm at the lower end, one end of the power input shaft 1 is a cylindrical expanding pipe, the other end of the power input shaft is a driving worm gear rod, the extending part of the worm gear rod is processed into a square connecting rod, worm gears are meshed with each other, a worm gear is fixed on a support frame, two protective cover plates are additionally installed on two sides of the worm gear, two square connecting rods with different models extend out of the cover plates, the rotating working force of the handle rod is transmitted to a worm gear transmission mechanism at the lower part through a transverse rod at the upper part and a worm at the lower end of the handle, the working force is transmitted to the square connecting rods through the worm gear and the worm gear, the longitudinal torque is converted into the transverse torque, and the torque is transmitted through the rotation of the worm gear.

Fig. 5 is a schematic structural view of a wrench device suitable for use in a narrow space according to another embodiment of the present application. As shown in fig. 5, the driving member 4 may be a motor 42, and an output shaft of the motor 42 is connected to the square column structure through a sleeve.

The driving part 4 in this application can also be mechanized actuating mechanism such as motor 42, and the output shaft of motor 42 can be connected through structure transmission such as sleeve with the square column structure to realize that motor 42 drives the rotation of power input shaft 1, realize then the screwing up or the operation of unscrewing of fastener.

It should be understood that, in the embodiment of the present application, different driving component structures may be selected according to requirements of practical application scenarios, as long as the selected driving component structure can facilitate power input, and the specific structure of the driving component is not limited in the embodiment of the present application.

Fig. 6 is a schematic structural view of a wrench device suitable for use in a narrow space according to another embodiment of the present application. As shown in fig. 6, the wrench device for a narrow space may further include: the shell 5, at least part of the power input shaft 1 and the transmission component 3 are arranged in the shell 5, and the power input shaft 1 and the power output shaft 2 respectively rotate relative to the shell 5.

The utility model provides a wrench device suitable for narrow and small space can also include a shell 5, at least part and the drive disk assembly 3 of power input shaft 1 set up in this shell 5, power input shaft 1, power output shaft 2 rotates relative shell 5 respectively, thereby realize that power is transmitted to power output shaft 2 by power input shaft 1, wherein, shell 5 is used for protecting power input shaft 1 and power output shaft 2, avoid power input shaft 1 and power output shaft 2 to expose for a long time and rust or debris get into and lead to power input shaft 1 and power output shaft 2 can not normally operate outside.

In a further embodiment, the housing 5 is hermetically connected with the power input shaft 1 and the power output shaft 2, and the housing 5 is filled with lubricating oil. The utility model provides a shell 5 and power input shaft 1, power output shaft 2 sealing connection to pack lubricating oil in shell 5, realize power input shaft 1 and power output shaft 2 at the lubricating oil internal rotation promptly, thereby reduced power input shaft 1 and power output shaft 2 pivoted resistance, improved driven efficiency.

Fig. 7 is a schematic structural view of a wrench device suitable for use in a narrow space according to another embodiment of the present application. As shown in fig. 7, the wrench device for a narrow space may further include: and the illuminating lamp 6 is arranged on one side of the outer side of the shell 5, which is close to the power output shaft 2.

The application of a wrench device suitable for narrow and small space can also include light 6, and this light 6 sets up in the 5 outsides of shell and is close to power output shaft 2 one sides, because the light is not enough in the narrow and small space usually, the difficult accurate fastener that needs to be screwed up or unscrew of finding of operating personnel, can improve the luminance in this narrow and small space through setting up light 6 this moment to improve the efficiency that operating personnel found the fastener, then improved the operating efficiency.

In an embodiment, the power take-off shaft 2 may comprise a square stub arranged in the centre of the power take-off shaft 2. This application sets up a four directions flange joints through the center at power output shaft 2 to can utilize the sleeve isotructure of equidimension not to realize power output shaft 2 and the cooperation of the fastener of equidimension not (for example the nut of equidimension not etc.) not, with the operation of the fastener of realizing not unidimension, thereby improved the application scope of this spanner device.

The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.

The block diagrams of devices, apparatuses, systems referred to in this application are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

It should also be noted that in the devices, apparatuses, and methods of the present application, the components or steps may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present application.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims (10)

1. A wrench device suitable for a narrow space, comprising:

a power input shaft for providing power to drive a fastener;

a power take-off shaft for coming into close contact with the fastener to drive the fastener; and

a transmission member provided between the power input shaft and the power output shaft, for transmitting power of the power input shaft to the power output shaft;

wherein the power input shaft is perpendicular to the rotation direction of the power output shaft.

2. The wrench device for small spaces according to claim 1, wherein the transmission member includes a worm wheel and a worm engaged with each other; the worm is arranged on the outer surface of the power input shaft, and the worm wheel is arranged on the outer surface of the power output shaft.

3. The wrench device suitable for narrow space as claimed in claim 1, wherein the end of the power input shaft far from the power output shaft comprises a square column structure.

4. The wrench device for small spaces according to claim 3, further comprising:

and the driving part is connected with the square column structure through a sleeve.

5. The wrench device suitable for a narrow space as claimed in claim 4, wherein the driving part includes a handle, the handle includes a connecting portion and a rotating portion, the connecting portion and the square column structure are connected through the sleeve, and the rotating portion penetrates the connecting portion in a vertical direction perpendicular to the power input shaft.

6. The wrench device suitable for narrow spaces according to claim 4, wherein the driving member includes a motor, and an output shaft of the motor is connected to the square column structure through a sleeve.

7. The wrench device for small spaces according to claim 1, further comprising:

the power input shaft and the power output shaft respectively rotate relative to the shell.

8. The wrench device suitable for narrow and small spaces according to claim 7, wherein the housing is hermetically connected with the power input shaft and the power output shaft, and lubricating oil is filled in the housing.

9. The wrench device for small spaces according to claim 7, further comprising:

the illuminating lamp is arranged on one side, close to the power output shaft, of the outer side of the shell.

10. The wrench device for small spaces according to claim 1, wherein the power take-off shaft includes a square stub provided at a center of the power take-off shaft.

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